Damping device for mechanical grinding

A damping device for mechanical grinding comprises a mandrel, a steel ring, a left baffle, a right baffle, a sliding sleeve and a nut, wherein the mandrel is sequentially sleeved with the steel ring, the left baffle, the right baffle, the sliding sleeve and the nut. The ejector pin end of the mandrel can be ejected by the ejector pin, the steel ring is fixedly sleeved outside the ejector pin end, and a jackscrew is radially inserted into the steel ring; a first circular bead is arranged on the mandrel, and the first circular bead limits the left baffle movably connected outside the mandrel in a sleeving mode to move towards the direction close to the ejector pin end; a pair of opposite side surfaces of the right baffle plate and the left baffle plate are respectively provided with a damping layer, and a grinding product movably sleeved on the mandrel is arranged between the two damping layers; a thread matched with the nut is arranged at the clamping end close to the mandrel, and the sliding sleeve abuts agai